Treatments with antibiotics or with Anti-Endotoxin serum before calving: effects on milk yield and fertility

Abstract

An inflammatory like condition is known to be frequent around calving (Cappa et al., 1989) and could be promoted by the release of cytokines (i.e. IL-1, TNFα etc.) by immune cells following to various stimuli (i.e. trauma, infection, virus, endotoxin, digestive and metabolic disorders etc.). Cytokines have local and systemic effects and namely increase body temperature and decrease feed intake (Elsasser et al., 1997). The anorexic and other effects of cytokines could cause serious consequences around calving, i.e. on liver lipid metabolism and reproduction.......

Keywords

• antibiotic, Anti-Endotoxin serum, fertility, dairy cow